Datasheet

Table Of Contents
TMS320DM6467T
SPRS605C JULY 2009REVISED JUNE 2012
www.ti.com
4.6 Configurations After Reset
The following sections provide details on configuring the device after reset.
Multiplexed pin are configured both at and after reset. Section 4.5.1, Device and Peripheral Configurations
at Device Reset, discusses multiplexed pin control at reset. For more details on multiplexed pins control
after reset, see Section 4.7, Multiplexed Pin Configurations.
4.6.1 Switch Central Resource (SCR) Bus Priorities
Prioritization within the Switched Central Resource (SCR) is programmable for each master. The register
bit fields and default priority levels for DM6467T bus masters are shown in Table 4-14, DM6467T Default
Bus Master Priorities. The priority levels should be tuned to obtain the best system performance for a
particular application. Lower values indicate higher priority. For most masters, their priority values are
programmed at the system level by configuring the MSTPRI0, MSTPRI1, and MSTPRI2 registers. Details
on the MSTPRI0/1/2 registers are shown in Figure 4-11, Figure 4-12, and Figure 4-13.
Table 4-14. DM6467T Default Bus Master Priorities
Priority Bit Field Bus Master Default Priority Level
VP0P VPIF Capture 1 (MSTPRI2 Register)
VP1P VPIF Display 1 (MSTPRI2 Register)
TSIF0P TSIF0 1 (MSTPRI2 Register)
TSIF1P TSIF1 1 (MSTPRI2 Register)
EDMATC0P EDMATC0 2 (MSTPRI2 Register)
EDMATC1P EDMATC1 2 (MSTPRI2 Register)
EDMATC2P EDMATC2 2 (MSTPRI2 Register)
EDMATC3P EDMATC3 2 (MSTPRI2 Register)
HDVICP0P HDVICP0 (CFG)
(1)
3 (MSTPRI0 Register)
HDVICP1P HDVICP1 (CFG)
(1)
3 (MSTPRI0 Register)
ARMINSTP ARM926 (INST) 4 (MSTPRI0 Register)
ARMDATAP ARM926 (DATA) 4 (MSTPRI0 Register)
DSPDMAP C64x+ DSP (DMA) 4 (MSTPRI0 Register)
DSPCFGP C64x+ DSP (CFG)
(1)
4 (MSTPRI0 Register)
VDCEP VDCE 4 (MSTPRI1 Register)
EMACP EMAC 5 (MSTPRI1 Register)
USBP USB2.0 5 (MSTPRI1 Register)
ATAP ATA 5 (MSTPRI1 Register)
VLYNQP VLYNQ 5 (MSTPRI1 Register)
PCIP PCI 6 (MSTPRI1 Register)
HPIP HPI 6 (MSTPRI1 Register)
(1) The C64x+ DSP (CFG), HDVICP0 (CFG), and HDVICP1 (CFG) priority values are not actually used by the DMSoC infrastructure –
which gives equal weight round-robin priority to accesses from these three masters. Therefore, the priority settings for these three
masters in the MSTPRI0 register have no effect.
102 Device Configurations Copyright © 2009–2012, Texas Instruments Incorporated
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